llvm-mc-3.8(1)
NAME
llvm-mc - manual page for llvm-mc 3.8
DESCRIPTION
ERROR: ld.so: object 'libfakeroot-sysv.so' from LD_PRELOAD cannot be
preloaded (cannot open shared object file): ignored. OVERVIEW: llvm
machine code playground
USAGE: llvm-mc [options] <input file>
OPTIONS:
General options:
-I=<directory> - Directory of include
files
-aarch64-neon-syntax - Choose style of NEON
code to emit from AArch64 backend:
=generic
- Emit generic NEON assembly
=apple - Emit Apple-style NEON assembly
-arch=<string> - Target arch to
assemble for, see -version for available targets
-asm-instrumentation - Instrumentation of
inline assembly and assembly source files
=none - no instrumentation at all
=address
- instrument instructions with memory arguments
-asm-show-inst - Emit internal
instruction representation to assembly file
-bounds-checking-single-trap - Use one trap block
per function
-code-model - Choose code model
=default
- Target default code model
=small - Small code model
=kernel
- Kernel code model
=medium
- Medium code model
=large - Large code model
-color - use colored syntax
highlighting (default=autodetect)
-compress-debug-sections - Compress DWARF debug
sections
-cppfname=<function name> - Specify the name of
the generated function
-cppfor=<string> - Specify the name of
the thing to generate
-cppgen - Choose what kind of
output to generate
=program
- Generate a complete program
=module
- Generate a module definition
=contents
- Generate contents of a module
=function
- Generate a function definition
=functions
- Generate all function definitions
=inline
- Generate an inline function
=variable
- Generate a variable definition
=type - Generate a type definition
-defsym=<string> - Defines a symbol to
be an integer constant
-disable-spill-fusing - Disable fusing of
spill code into instructions
-dwarf-version=<int> - Dwarf version
-enable-implicit-null-checks - Fold null checks into
faulting memory operations
-enable-load-pre -
-enable-objc-arc-opts - enable/disable all
ARC Optimizations
-enable-scoped-noalias -
-enable-tbaa -
-exhaustive-register-search - Exhaustive Search for
registers bypassing the depth and interference cutoffs of last
chance recoloring
-fatal-warnings - Treat warnings as
errors
-fdebug-compilation-dir=<string> - Specifies the debug
info's compilation dir
-filetype - Choose an output file
type:
=asm - Emit an assembly ('.s') file
=null - Don't emit anything (for timing purposes)
=obj - Emit a native object ('.o') file
-filter-print-funcs=<function names> - Only print IR for
functions whose name match this for all
print-[before|after][-all] options
-g - Generate dwarf
debugging info for assembly source files
-gpsize=<uint> - Global Pointer
Addressing Size.
The default size is 8.
-imp-null-check-page-size=<uint> - The page size of the
target in bytes
-incremental-linker-compatible - When used with
filetype=obj, emit an object file which can be used with an
incremental linker
-internalize-public-api-file=<filename> - A file containing
list of symbol names to preserve
-internalize-public-api-list=<list> - A list of symbol
names to preserve
-join-liveintervals - Coalesce copies
(default=true)
-limit-float-precision=<uint> - Generate
low-precision inline sequences for some float libcalls
-main-file-name=<string> - Specifies the name we
should consider the input file
-mattr=<a1,+a2,-a3,...> - Target specific
attributes (-mattr=help for details)
-mc-relax-all - When used with
filetype=obj, relax all fixups in the emitted object file
-mcpu=<cpu-name> - Target a specific cpu
type (-mcpu=help for details)
Action to perform:
-as-lex - Lex tokens from a .s
file
-assemble - Assemble a .s file
(default)
-disassemble - Disassemble strings of
hex bytes
-mdis - Marked up disassembly
of strings of hex bytes
-merror-missing-parenthesis - Error for missing
parenthesis around predicate registers
-merror-noncontigious-register - Error for register
names that aren't contigious
-mfuture-regs - Enable future
registers
-mips16-constant-islands - Enable mips16
constant islands.
-mips16-hard-float - Enable mips16 hard
float.
-mno-compound - Disable looking for
compound instructions for Hexagon
-mno-ldc1-sdc1 - Expand double
precision loads and stores to their single precision
counterparts
-mno-pairing - Disable looking for
duplex instructions for Hexagon
-mwarn-missing-parenthesis - Warn for missing
parenthesis around predicate registers
-mwarn-noncontigious-register - Warn for register
names that arent contigious
-mwarn-sign-mismatch - Warn for mismatching
a signed and unsigned value
-n - Don't assume assembly
file starts in the text section
-no-discriminators - Disable generation of
discriminator information.
-no-exec-stack - File doesn't need an
exec stack
-no-warn - Suppress all warnings
-nvptx-sched4reg - NVPTX Specific:
schedule for register pressue
-o=<filename> - Output filename
-output-asm-variant=<uint> - Syntax variant to use
for output printing
-print-after-all - Print IR after each
pass
-print-before-all - Print IR before each
pass
-print-imm-hex - Prefer hex format for
immediate values
-print-machineinstrs=<pass-name> - Print machine instrs
-rdf-dump -
-rdf-limit=<uint> -
-regalloc - Register allocator to
use
=default
- pick register allocator based on -O option
=basic - basic register allocator
=fast - fast register allocator
=greedy
- greedy register allocator
=pbqp - PBQP register allocator
-relocation-model - Choose relocation
model
=default
- Target default relocation model
=static
- Non-relocatable code
=pic - Fully relocatable, position independent code
=dynamic-no-pic
- Relocatable external references, non-relocatable code
-rewrite-map-file=<filename> - Symbol Rewrite Map
-rng-seed=<seed> - Seed for the random
number generator
-sample-profile-check-record-coverage=<N> - Emit a warning if
less than N% of records in the input profile are matched to the
IR.
-sample-profile-check-sample-coverage=<N> - Emit a warning if
less than N% of samples in the input profile are matched to the
IR.
-sample-profile-global-cold-threshold=<N> - Top-level functions
that account for less than N% of all samples collected in the
profile, will be marked as cold for the inliner to consider.
-sample-profile-global-hot-threshold=<N> - Top-level functions
that account for more than N% of all samples collected in the
profile, will be marked as hot for the inliner to consider.
-sample-profile-inline-hot-threshold=<N> - Inlined functions
that account for more than N% of all samples collected in the
parent function, will be inlined again.
-sample-profile-max-propagate-iterations=<uint> - Maximum number of
iterations to go through when propagating sample block/edge
weights through the CFG.
-save-temp-labels - Don't discard
temporary labels
-show-encoding - Show instruction
encodings
-show-inst - Show internal
instruction representation
-show-inst-operands - Show instructions
operands as parsed
-stackmap-version=<int> - Specify the stackmap
encoding version (default = 1)
-stats - Enable statistics
output from program (available with Asserts)
-summary-file=<string> - The summary file to
use for function importing.
-time-passes - Time each pass,
printing elapsed time for each on exit
-triple=<string> - Target triple to
assemble for, see -version for available targets
-verify-debug-info -
-verify-dom-info - Verify dominator info
(time consuming)
-verify-loop-info - Verify loop info
(time consuming)
-verify-regalloc - Verify during
register allocation
-verify-region-info - Verify region info
(time consuming)
-verify-scev - Verify
ScalarEvolution's backedge taken counts (slow)
-x86-asm-syntax - Choose style of code
to emit from X86 backend:
=att - Emit AT&T-style assembly
=intel - Emit Intel-style assembly
Generic Options:
-help - Display available
options (-help-hidden for more)
-help-list - Display list of
available options (-help-list-hidden for more)
-version - Display the version
of this program
SEE ALSO
The full documentation for llvm-mc is maintained as a Texinfo manual.
If the info and llvm-mc programs are properly installed at your site,
the command
info llvm-mc
should give you access to the complete manual.
Opportunity
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
Free Books
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Education
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.
